Visitors and locals flock to La Jolla’s beaches in the summer, but another group of beach-goers also is making its way to the shore by the thousands. This month is a good time for those who walk La ...

It is described the sperm ultraestructure differentiation during spermiogenesis of Tagelus plebeius (Lightfoot, 1786). The spermatozoon is an uniflagellated cell of the primitive type. The head region ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

The Cooperative Agricultural Pest Survey (CAPS) is a national pest detection program funded through a cooperative agreement between the Maine Department of Agriculture, Conservation and Forestry, ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Auckland War Memorial Museum is New Zealand's first Museum. The Museum tells the story of New Zealand, its place in the Pacific and its people. The Museum is a war memorial for the province of ...

Auckland War Memorial Museum is New Zealand's first Museum. The Museum tells the story of New Zealand, its place in the Pacific and its people. The Museum is a war memorial for the province of ...

WITH reference to Dr. R. Spärck's statement (NATURE, October 7, p. 480) that the male stage in the oyster is due to the coldness of the temperature, it should be pointed out that in various ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Institute of Marine Research (IIM), Spanish National Research Council (CSIC), Vigo, Spain Introduction: Mollusks play a significant role in marine ecosystems and have economic value for aquaculture.